Burner for gaseous or liquid fuel



Dec. 26, 1,939. l s. T. sHERRlcK ET AL BURNER4 FOR GASEOUS 0R LIQUID FUEL Filed uarh 15 l1959 INVENTORS.

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f ATTORNEY.

Patented Dec. 26, 1939 UNITED STATES ais-1.653 BURNERFOR GAsEoUs on LIQUID FUEL Samuel T. Sherriclr and Charles A. Lewallen, Denver, Colo., assigner-s to. Vac-Q-O Burner and Oil Cleaner Company Incorporated Application March 13,

2 Claims.

This invention relates to a burner for use with gas or oil and has for its principal object the provision of a small, simple, compact unit which will deliver a maximum amount of heat from a 5 minimum amount of fuel and which will Abe smokeless, noiseless, and odorless when in use.

The invention is more particularly designed for heating buildings but is not limited to this particular use as it will be found valuable whereever a maximum heat is desired from a relatively small, portable device.

Another object of the invention is to so construct the burner that it may be used within any standard stove, furnace or fireplace, or independent thereof as desired. v

Other objects and advantages reside in the detail construction of the invention, which is designed for simplicity, economy, and efciency.

20 lowing description.

In the following detailed description of the invention referenceis had to the accompanying drawing which forms a part hereof. Like numerals refer to like parts in all views of the drawing and throughout the description.

In the drawing:

Fig. 1 is a vertical section through the burner.

Figs. 2 and 3 are horizontal cross sections therethrough, taken on the lines 2-2, and 3 3, respectively.

The improved burner consists of an outer housing 'I0 having a cylindrical air thimble Il extending upwardly from and opening concenimproved drical jacketIZ extends downwardly into .the housing I terminating above the bottom thereof and provided with an inwardly turned flange I3Y extending to and enclosing the thimble II. The ange I3 is preferably welded tothe thimble II` to support the jacket I2. The jacket I2 contains three seriesv of perforations; a lower series of fuel perforations I1; aprimary 'air series I8: and a secondary air series I9.`

wardly inclined iangeV plate I4 which terminates in spaced relation-to the jacket I2 to form an annular, down-draft throat .I5. The throat I5 may be closed when desired by means of a vertically slidable valve ring I 6 having a tapered face for sealing thethroat I5.

A perforated air`di'stributing sleeve 2l) is slidably tted into the upper extremity of. the thimble Il and supports a llame spreading ring 2l of iire \clay4 or similar refractory, heat-resisting These will become more apparent from the fol- 'trically through the-bottom thereof. A cylin The top of thehousing'` is formed with a downf 1939. seri-a1 No. 261,566

(Cl. s-99) material. A central air flue 22 is supported on the ring 2|. The air iiue is closed at its top by means of a flame spreading cap member 23 also of refractory, heat-resisting material. A series of perforations 24 surround the upper extremity of 5 the air flue 22. .g

Fuel is fed to the burner through a suitable fuel pipe 25 leading to a perforated distributing ring 26 in the bottom of the housing I0. The distributing ring 26 is embedded in a layer of 10 porous, fire-resisting' material, preferably in a loose bed of exfoliated ver'miculite 21. The fuel discharging from the ring 26 spreads throughout the entire porous bed of vermiculite so as to rise yfrom the entire uppersurfacethereof. 15

'If gas is used for fuel, it rises from this bed into the housing I0 where it is met by a down draft from the throat I5. The mixed air and fuel flows through the lower fuel perforations I1 into the bottom of the jacket I2 where it is ignited.

The ames rise upwardly in the jacket taking or additional combustion air as they pass \the sleeve perforations and the primary perfo-rations I8. Any unburned gas remaining will be mixed with air through the perforations 24 and nally through the secondary perforations I9 so that complete combustion of all of the gas is had.

If oil is used for fuel, the device is preheated to gasify the fuel in the housing "so that the fuel gas will iiow through the perforations I1 and through the mixing and burning stages similarly' to the previously described gas fuel. The rising volume of burning gases in the jacket creates a partial vacuum in the housing I0 to prevent combustion therein` and to draw in the primary air through the down draft throat I5. If this throat be closed by-means of the valve ring I6, combustion will immediately cease. l

Where intense heat is desired, additional air may be introduced' into the housing, there being a plugged pipeopening 28 for this purpose. A second plugged pipe opening 29 may be used for additional oil,.or water..The housing I0 is 'l formed with suitable legs 30 for suppporting it above the floor or other surface to allow the air to enter the thimble II. Y

While a specificform of the improvement has been described and illustratedherein, itis desired to be understood that the same may be varied, within the scope of the appended'claims, with- :50

out departing from the spirit of the invention.

Having thus' described the invention, what is claimed and desired secured by Letters Patent is:

1. A burner comprising: an outer cylindrical housing; a cylindrical jacket of lessdiameter 55 than said housing supported therein and extending; an anular inwardly extending ange at the upstanding thimble Within said jacketopening through the oor of said housing; a u extending upward from said thimble within said housing; an annular inwardly extending flange at the top -of said housing terminating in spaced relation to said jacket to leave an annular down draft throat; and a iiame spreader supported by said flue Within said jacket, there being perforations in said jacket within said housing and above the latter and perforations in said flue above and below said flame spreader; and means for supplying fuel to said housing exteriorly of/said jacket.

2. A' burner comprising: an outer cylindrical housing; a cylindrical jacket of less diameter than said housing supported therein and extending upwardly above the top of said housing; an

upstanding thimble within said jacket opening I through the floor of said housing; a iiue extending upward from said thimble within said housing; an annular inwardly extending ange at the l top of said housing terminating in spaced rela-` tion to said jacket to leave an annular down draft throat; and a flame spreader supported by said flue within said jacket, there being perforations in said jacket within said housing and above the latter and perforations in said flue above and 

